Combination respiratory mask and heat and moisture exchanger unit



FIG. 1 is a front perspective view of a combination respiratory mask andheat and moisture exchanger unit showing a first embodiment of our newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a front perspective view of a combination respiratory mask andheat and moisture exchanger unit showing a second embodiment of our newdesign;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a top view thereof;

FIG. 12 is a bottom view thereof;

FIG. 13 is a left side view thereof;

FIG. 14 is a right side view thereof;

FIG. 15 is a front perspective view of a combination respiratory maskand heat and moisture exchanger unit showing a third embodiment of ournew design;

FIG. 16 is a front view thereof;

FIG. 17 is a rear view thereof;

FIG. 18 is a top view thereof;

FIG. 19 is a bottom view thereof;

FIG. 20 is a left side view thereof;

FIG. 21 is a right side view thereof;

FIG. 22 is a front perspective view of a combination respiratory maskand heat and moisture exchanger unit showing a fourth embodiment of ournew design;

FIG. 23 is a front view thereof;

FIG. 24 is a rear view thereof;

FIG. 25 is a top view thereof;

FIG. 26 is a bottom view thereof;

FIG. 27 is a left side view thereof; and,

FIG. 28 is a right side view thereof.

One or more views (e.g., bottom view) may not be shown as those viewsare unornamented or simply not claimed in a given embodiment.

The broken lines in the drawings depict portions of the combinationrespiratory mask and heat and moisture exchanger unit that form no partof the claimed design.

CLAIM The ornamental design for a combination respiratory mask and heatand moisture exchanger unit, as shown and described.